Windows 7: The Unofficial Quick Reference    by Scott Douglas
Price: $2.99 USD. 2950 words. Published on October 20, 2009. .
You’ve heard about Windows 7—maybe you’ve even seen it in actual—but what exactly is it? How is it different from any other Windows operating system before it, and should you upgrade your computer to it? These questions and more are answered in On the Go Reference’s Windows 7: The Unofficial Quick Reference.

The Windows Command Line Beginner's Guide - Second Edition    by Jonathan Moeller
Price: $0.99 USD. 37260 words. Published on September 17, 2011. .
The Windows Command Line Beginner's Guide gives users new to the Windows command line an overview of the Command Prompt, from simple tasks to network configuration.

BASICS of Windows The Easy Guide to Your PC. Volume 1: Just the Basics    by Stephie Smith
Price: $1.99 USD. 20670 words. Published on April 7, 2013. .
Basic instructions for using Windows operating system. Concise and easy to understand. 65 large, full-color screen shots. Not version-specific so you learn the basic skills for any Windows PC. Simple exercises to test your knowledge and build confidence while you apply what you've learned. Question and Answer section covers what to do when things don't work the way they should.